WO2011063445A1 - Washer assembly and arcuate threaded fastener - Google Patents
Washer assembly and arcuate threaded fastener Download PDFInfo
- Publication number
- WO2011063445A1 WO2011063445A1 PCT/AU2010/001469 AU2010001469W WO2011063445A1 WO 2011063445 A1 WO2011063445 A1 WO 2011063445A1 AU 2010001469 W AU2010001469 W AU 2010001469W WO 2011063445 A1 WO2011063445 A1 WO 2011063445A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- aperture
- washer
- combination
- threaded fastener
- coupling plate
- Prior art date
Links
- 239000004567 concrete Substances 0.000 claims abstract description 23
- 230000008878 coupling Effects 0.000 claims description 23
- 238000010168 coupling process Methods 0.000 claims description 23
- 238000005859 coupling reaction Methods 0.000 claims description 23
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000012986 modification Methods 0.000 description 7
- 230000004048 modification Effects 0.000 description 7
- 239000002184 metal Substances 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4114—Elements with sockets
- E04B1/4121—Elements with sockets with internal threads or non-adjustable captive nuts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
- F16B43/02—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts with special provisions for engaging surfaces which are not perpendicular to a bolt axis or do not surround the bolt
Definitions
- the present invention relates the washer and ferrule described in International Patent Application PCT/AU2009/000898, and more particularly to a washer assembly to accommodate varying dimensions and angular displacement in items to be secured together by means of a threaded fastener.
- the elements In the use of pre-cast concrete elements it is not uncommon for the elements to be secured together by means of metal plates or straps. Typically the concrete elements to be secured together would each have embedded in them a ferrule. A metal plate extends between the ferrules with threaded fasteners then passing through the metal plate to engage within the ferrules to secure the case elements together.
- a washer assembly and a threaded fastener said assembly including:
- first washer portion having an aperture through which the threaded fastener is to pass, and a surface at least substantially surrounding said aperture
- a second washer portion said second washer portion having an aperture through which the fastener is to pass, the second portion having a surface at least substantially surrounding the aperture of the second portion and being positioned to abut the surface of the first portion and to be urged into contact therewith upon tensioning of the fastener;
- the surface of said second portion extends beyond the aperture of said first portion when the surfaces abut, the aperture of said first portion is dimensioned to provide for relative movement between the portions with the apertures aligned to provide for the insertion of the threaded fastener therethrough, and said surfaces have cooperating projections and recesses that inhibit relative movement between the portions when the threaded fastener is tensioned urging the surface of said second portion against the surface of said first portion:
- said threaded fastener includes an arcuate surface to engage said second washer portion adjacent the aperture thereof.
- the aperture of said first portion has a longitudinal transverse axis with said aperture of said first portion being elongated in direction of said longitudinal axis.
- said projections are ridges and said recesses are slots.
- both surfaces have ridges and slots.
- said first portion includes projections to engage an article to be engaged by the threaded fastener.
- the assembly is adapted to engage a coupling plate to secure the coupling plate to an element, said coupling plate having an aperture to receive at least part of said first washer portion, said coupling plate having a thickness, and wherein said assembly further includes a support plate located in the aperture of the first washer, the support plate having a thickness no greater than the thickness of the coupling plate, with said support plate having an aperture through which the threaded fastener is to pass.
- the aperture of said plate is the same configuration as the aperture of said second washer.
- the aperture of said first washer provides a cavity in said first washer, and said support plate substantially occupies said aperture.
- the projections and recesses of said surfaces surround the apertures of the first and second washer portion.
- each surface has the projections and ridges located in two areas, the areas being located on opposite sides of the respective aperture.
- the first washer portion is generally circular in configuration.
- first concrete element and a second concrete element each of the elements having a surface, with the concrete surfaces being adjacent, with at least one of the concrete elements having embedded in it a ferrule having a threaded passage extending inwardly of the element from the respective surface of that element, a coupling plate to be fixed to at least said one element, the combination of any one of claims 1 to 14, securing the coupling plate to said one element, and said threaded fastener passing through the washer assembly and engaged in the ferrule to secure the coupling plate to the respective concrete element.
- said coupling plate has an aperture through which the threaded fastener passes, with the first washer portion urged into secure engagement with the coupling plate to secure the coupling plate to the concrete element.
- the arcuate surface of the threaded fastener is convex.
- the arcuate surface of said threaded fastener is concave.
- the arcuate surface of said threaded fastener is part of a sphere.
- said second washer portion includes an engaging surface surrounding the aperture of the second portion, said engaging surface being arcuate to match and engage the arcuate surface of the threaded fastener.
- the surface of the first portion entirely surrounds the aperture of the first portion
- the surface of the second portion entirely surrounds the aperture of the second portion
- Figure 1 is a schematic isometric view of a threaded fastener, ferrule and washer assembly
- Figure 2 is a schematic isometric parts exploded view of a pair of cast concrete elements to be secured together by a metal strap employing a ferrule, washer assembly and threaded fastener of Figure 1;
- Figure 3 is a schematic top plan view of a modification of the washer of Figure 5;
- Figure 4 is a schematic sectioned side elevation of the washer of Figure 3 section along the lines 4-4;
- Figure 5 is a schematic top plan view of a first washer portion employed in the washer assembly of Figure 1 ;
- Figure 6 is a schematic second side elevation of the washer portion of Figure 5 section along the line 6-6;
- Figure 7 is a schematic top plan view of a second washer portion employed in the washer assembly of Figure 1 ;
- Figure 8 is a schematic side elevation of the washer portion of Figure 7;
- Figure 9 is a schematic parts exploded isometric view of a modification of the threaded fastener, ferrule and washer assembly of Figure 1 ;
- Figure 10 is a schematic top plan view of a modification of the washer of Figure
- Figure 1 1 is a schematic sectioned side elevation of the washer of Figure 10 sectioned along the line 1 1-1 1 ;
- Figure 12 is a schematic top plan view of a modification of the washer of Figure
- Figure 13 is a schematic end elevation of the washer of Figure 12;
- Figure 14 is a schematic side elevation of the washer of Figure 12.
- Figure 15 is a schematic side elevation of a modification of the washer of Figure
- Figure 16 is a schematic parts sectioned side elevation of the washer assembly of Figure 1 , with a modified threaded fastener;
- Figure 17 is a schematic part sectioned side elevation of the washer assembly of Figures 1 and 16 modified;
- Figure 18 is a schematic top plan view of a washer employed in the washer assembly of Figure 17;
- Figure 1 is a schematic sectioned side elevation of the washer of Figure 18 sectioned along the line 19-19.
- FIGS 1 to 15 of the accompanying drawings there is schematically depicted a ferrule 10 that is intended to be cast into a concrete element, such as a concrete panel or floor.
- the ferrule 10 includes a cylindrical body 1 1 through which there transversely extends a pin 12 to aid in retaining the ferrule 10 in a concrete element.
- the body 1 1 has a longitudinal axis 13 and is a cylindrical configuration.
- the body 1 1 has a longitudinal passage 14 that is threaded and terminates at its end with an annular end surface 15.
- the ferrule 10 would be embedded in a concrete element 16.
- the element 16 is intended to be secured to an adjacent element 17 also having a ferrule 10 (not illustrated), with the elements 16 and 17 having generally planar surfaces 18 that are co-planar. However the surfaces 18 could also be perpendicular.
- a metal coupling plate 19 that is in the form of a strip.
- the plate 19 has a pair of apertures 20 and 21. When the plate 19 is abutting the surfaces 18, the apertures 20 and 21 expose the passages 14 of the adjacent ferrules 10 so that threaded fasteners 21 may pass therethrough and engage in a threaded passages 14 of the associated ferrule 10.
- a washer assembly 22 is used with each threaded fastener 21 so that upon tension of the threaded fastener 21 the washer assembly 22 engages the plate 19 and retains the plate 19 fixed to the elements 16 and 17.
- the washer assembly 22 includes a first washer portion 23 and a second washer portion 24.
- the washer portion 23 is of a circular configuration and includes an annular part 25 that engages within the circular aperture 20/21 and preferably is a reasonably tight fit in respect thereof. Extending laterally beyond the part 25 is an annular flange 26 that abuts the top surface 27 of the plate 19 and includes ridges 28 that engage the surface 27 and preferably plastically deform the plate 19 so that the portion 23 is firmly secured thereto.
- the portion 23 has an aperture 29 through which the threaded fastener 21 passes. At least substantially surrounding the aperture 29 is a surface 30. Most preferably, the surface 30 entirely surrounds the aperture 29.
- the surface 30 of this embodiment is provided with a plurality of projections and recesses. In this embodiment the projections and recesses are a plurality of generally parallel ridges 31 separated by generally parallel slots 32.
- the aperture 29 has a longitudinal axis 33 which the aperture 29 being longitudinally elongated in the direction of the axis 33.
- the second washer portion 24 has an aperture 34 that is generally circular in configuration, with the aperture 34 being at least substantially surrounded by a surface 35. Most preferably, the surface 35 entirely surrounds the aperture 34.
- the surface 35 has a plurality of projections and recesses. In this embodiment the projections and recesses of the portion 24 are generally parallel ridges 36 separated by parallel slots 37.
- the plate 19 When assembled the plate 19 is placed on top of the surfaces 18 so that the passages 14 are exposed. Thereafter, in respect of each ferrule 10, the first washer portion 23 is inserted in the apertures 20/21 with the second washer portion 24 then being applied so that the surfaces 30 and 35 abut. Preferably they abut with the ridges 31 and 36 being generally parallel with the ridges 31 being located in the slots 37 and the ridges 36 being located in the slots 32. Thereafter the threaded fastener 21 is inserted through the aligned apertures 20/21, 34 and 29 so that the threaded shaft 38 threadingly engages within the threaded passage 14. Thereafter the head 39 of the fastener 21 is rotated to tension the fastener 21.
- Tensioning of the fastener 21 occurs as the head 39 abuts the upper surface 40 of the portion 24.
- the washer portion 24 is urged into contact with the washer portion 23.
- the surfaces 30, 35 engage so that the washer portion 24 becomes fixed to the washer portion 23, with the washer portion 23 then urging the plate 19 against the surfaces 18, thus securing the plate 19 to the elements.16 and 17.
- the washer portion 23 has a tapered peripheral surface 41 that engages the surface 42 of the associated aperture 20/21 so that the portion 23 becomes "wedged" in the apertures 20/21.
- the washer portions 23, 24 can be moved angularly about the axis 13 thereby adjusting for any inaccuracies in locating the elements 16 and 17, and/or inaccuracies in location of the ferrules 10. That is, by moving the portions 23, 24 about the axis 13 the aperture 29 is moved angularly about the axis 13 thereby providing for adjustment in respect of position.
- FIG 9 there is schematically depicted a modification of the washer assembly 22.
- a support plate 46 that is received within the aperture 20/21.
- the plate 46 has a thickness less than the thickness of the plate 19 so that when the first washer portion 23 projects into the aperture 20 and the threaded fastener 21 tensioned, the plate 41 aids in supporting the first washer portion 23.
- the plate 46 has an aperture 47 that is essentially the same configuration as the aperture 29.
- the surface 30 has the projections and recesses surrounds the aperture 29, with the surface 35 also having the projections and recesses surrounds the apertures 34.
- the surface 30 still surrounds the apertures 29 however it is divided into two surface areas 43 that are located on opposite sides of the aperture 29.
- the surface 35 it is divided into two areas 44 located on opposite sides of the aperture 34.
- first washer portion 23 may have sharp edge projections 45 located at spaced angular positions about the axis 13 to aid in securing the first washer portion 23 to the plate 19.
- the threaded fastener 21 is modified.
- the threaded fastener 21 includes the threaded shaft 38 together with the head 39 that is engaged by a tool to cause rotation of the shaft 38. Accordingly, the head 39 is formed integral with or is attached to the shaft 38.
- the threaded fastener 21 is integrally formed with or has mounted with it an adaptor portion 50.
- the threaded fastener 21 includes the adaptor portion 50, irrespective of whether the adaptor portion 50 is formed integral with or merely engaged with the shaft 38 and head 39.
- the adaptor portion 50 may be integrally formed with the head 39 or may be a separate "washer" applied to the shaft 38. In such an instance the adaptor portion 50 would have a central opening through which the shaft 38 would pass.
- the adaptor portion 50 has an arcuate surface 51 that in this embodiment is part of a sphere. Also in this embodiment, the surface 51 is convex. Accordingly, the threaded fastener by including the adaptor portion 50 has the surface 51. The surface 51 engages the second washer portion 24 adjacent the aperture 34. Because the surface 51 is arcuate, the shaft 38 can be aligned with the longitudinal threaded passage 14 of the ferrule 10, even if the longitudinal passage 14 is displaced angularly by an angle 52 from the desired axis 53. That is, in this embodiment the surface 51 enables the shaft 38, having a longitudinal axis 54, to engage within its passage 14 even if the passage 14 has its longitudinal axis 13 not correctly oriented relative to the surface 18, that is along the axis 53.
- the washer assembly 22 can accommodate and adjust for the displacement of the passage 14 as well as the angular inclination of the passage 14.
- the ridges 31 and 36, and slots 32 and 37 provide for sliding movement of the washer portion 24 oyer the washer portion 23 in a direction generally transverse of the axis 13 until the shaft 38 is tensioned.
- the washer portion 24 has been modified so as to include an engaging surface 60 that engages the surface 51.
- the surface 60 is annular so as to surround the axis 53, however the surface 16 is also concave so as to match the curvature of the convex surface 51. Accordingly, the surface 60 is a segment of a sphere. By having the surface 60 match the surface 51 the load applied to the washer portion 24 is distributed over a greater area.
- the surface 51 is concave and the surface 60 convex. Their configurations could be reversed in that the surface 51 could be concave and the surface 60 convex.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
- Gasket Seals (AREA)
- Prostheses (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ599096A NZ599096A (en) | 2009-11-25 | 2010-11-04 | Washer assembly for variable alignment of a threaded fastener |
EP10832407.0A EP2504588A4 (en) | 2009-11-25 | 2010-11-04 | Washer assembly and arcuate threaded fastener |
CN2010800469175A CN102686893A (en) | 2009-11-25 | 2010-11-04 | Washer assembly and arcuate threaded fastener |
CA2774711A CA2774711A1 (en) | 2009-11-25 | 2010-11-04 | Washer assembly and arcuate threaded fastener |
US13/509,887 US8910449B2 (en) | 2009-11-25 | 2010-11-04 | Washer assembly and arcuate threaded fastener |
AU2010324519A AU2010324519B2 (en) | 2009-11-25 | 2010-11-04 | Washer assembly and arcuate threaded fastener |
ZA2012/02348A ZA201202348B (en) | 2009-11-25 | 2012-03-30 | Washer assembly and arcuate threaded fastener |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2009905772A AU2009905772A0 (en) | 2009-11-25 | A washer | |
AU2009905772 | 2009-11-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011063445A1 true WO2011063445A1 (en) | 2011-06-03 |
Family
ID=44065725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU2010/001469 WO2011063445A1 (en) | 2009-11-25 | 2010-11-04 | Washer assembly and arcuate threaded fastener |
Country Status (8)
Country | Link |
---|---|
US (1) | US8910449B2 (en) |
EP (1) | EP2504588A4 (en) |
CN (1) | CN102686893A (en) |
AU (1) | AU2010324519B2 (en) |
CA (1) | CA2774711A1 (en) |
NZ (1) | NZ599096A (en) |
WO (1) | WO2011063445A1 (en) |
ZA (1) | ZA201202348B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3081194A1 (en) * | 2018-05-15 | 2019-11-22 | Psa Automobiles Sa | ASSEMBLY BY FIXING SCREW OF A FIRST PIECE FRAMING A SECOND PIECE |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012021566B3 (en) * | 2012-06-01 | 2013-08-08 | Bernhard Hahner | centering |
JP6163113B2 (en) * | 2014-01-31 | 2017-07-12 | 日軽金アクト株式会社 | Solar panel mount |
WO2017100452A1 (en) * | 2015-12-10 | 2017-06-15 | Hendrickson Usa, L.L.C. | Pivotal connection for heavy-duty vehicle suspension assembly |
DE102015226546A1 (en) * | 2015-12-22 | 2017-06-22 | Rolls-Royce Deutschland Ltd & Co Kg | Engine cowling |
AU2019101652B4 (en) * | 2018-12-24 | 2020-09-03 | Rezicast Solutions Pty Ltd | Construction of a building using precast panels |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US629699A (en) * | 1898-02-03 | 1899-07-25 | Ulysses G Mcqueen | Stop-bead adjuster. |
GB2071250A (en) * | 1980-03-11 | 1981-09-16 | Titan Mfg Co Pty Ltd | Rock bolt assembly |
US20080003079A1 (en) | 2006-06-29 | 2008-01-03 | The Boeing Company | Compensator bushing assembly for fasteners with location variability |
Family Cites Families (18)
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US2685469A (en) | 1951-12-14 | 1954-08-03 | Chance Vought Aircraft Inc | Adjustable coupling |
US3135309A (en) * | 1961-03-01 | 1964-06-02 | Illinois Tool Works | Self-retained sheet metal fastener |
GB1139257A (en) * | 1966-08-16 | 1969-01-08 | Carr Fastener Co Ltd | Fastener for anchoring a nut |
EP0002654B1 (en) * | 1977-12-24 | 1982-01-20 | Heinrich Liebig | Fastening device with a dowel positively locking in a undercut bore |
US5090855A (en) * | 1990-03-19 | 1992-02-25 | Terry Sydney L | Locking fastener assembly |
US5352078A (en) * | 1992-01-24 | 1994-10-04 | The Boeing Company | Apparatus for attaching elements to an airplane stringer |
FR2732732B1 (en) * | 1995-04-05 | 1998-07-17 | Datec | DEVICE FOR FIXING AN OBJECT TO A SUPPORT |
FR2744501B1 (en) | 1996-02-07 | 1998-03-06 | Cita Ste Nouvelle Ets | DEVICE FOR CATCHING A DEFAULT IN ALIGNMENT OF ANCHORAGE MEANS OF A WORKPIECE ON ITS SUPPORT |
US6065263A (en) * | 1997-06-27 | 2000-05-23 | Kaieitechno Co., Ltd. | Connecting structure for concrete block and connector used therefor |
FR2768204B1 (en) * | 1997-09-05 | 1999-11-12 | Lemforder Nacam Sa | SAFETY OF SLIDING ENGAGEMENT OF A HOLDING DEVICE IN POSITION OF A SYSTEM FOR TIGHTENING TWO ELEMENTS |
US6224288B1 (en) * | 1998-12-14 | 2001-05-01 | The Aerospace Corporation | Corrugated slider washer bearing |
JP2003307208A (en) * | 2002-02-13 | 2003-10-31 | Murata Mfg Co Ltd | Screw fixture, high frequency apparatus using same and its characteristic adjusting method |
US6732982B1 (en) * | 2003-04-09 | 2004-05-11 | Bell Helicopter Textron, Inc. | Laterally adjustable clamp |
WO2008115083A1 (en) * | 2007-03-20 | 2008-09-25 | Itw New Zealand Limited | An adjustable washer system for building elements |
US7850410B1 (en) * | 2007-04-04 | 2010-12-14 | David Anthony Wayne Curtis | Fastener apparatus with self-leveling head |
NZ589055A (en) * | 2008-07-15 | 2012-09-28 | John Thomas Burke | Screw washer assembly with two washers with cooperating projections and recesses |
US8070404B1 (en) * | 2008-11-06 | 2011-12-06 | Middle Atlantic Products, Inc. | Bonding fastener assembly for electrical grounding |
EP2393994B1 (en) * | 2009-02-04 | 2018-05-02 | Thomas M. Espinosa | Concrete anchor |
-
2010
- 2010-11-04 CA CA2774711A patent/CA2774711A1/en not_active Abandoned
- 2010-11-04 US US13/509,887 patent/US8910449B2/en active Active
- 2010-11-04 AU AU2010324519A patent/AU2010324519B2/en active Active
- 2010-11-04 WO PCT/AU2010/001469 patent/WO2011063445A1/en active Application Filing
- 2010-11-04 CN CN2010800469175A patent/CN102686893A/en active Pending
- 2010-11-04 NZ NZ599096A patent/NZ599096A/en unknown
- 2010-11-04 EP EP10832407.0A patent/EP2504588A4/en not_active Withdrawn
-
2012
- 2012-03-30 ZA ZA2012/02348A patent/ZA201202348B/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US629699A (en) * | 1898-02-03 | 1899-07-25 | Ulysses G Mcqueen | Stop-bead adjuster. |
GB2071250A (en) * | 1980-03-11 | 1981-09-16 | Titan Mfg Co Pty Ltd | Rock bolt assembly |
US20080003079A1 (en) | 2006-06-29 | 2008-01-03 | The Boeing Company | Compensator bushing assembly for fasteners with location variability |
Non-Patent Citations (1)
Title |
---|
See also references of EP2504588A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3081194A1 (en) * | 2018-05-15 | 2019-11-22 | Psa Automobiles Sa | ASSEMBLY BY FIXING SCREW OF A FIRST PIECE FRAMING A SECOND PIECE |
Also Published As
Publication number | Publication date |
---|---|
CN102686893A (en) | 2012-09-19 |
CA2774711A1 (en) | 2011-06-03 |
NZ599096A (en) | 2013-06-28 |
AU2010324519A1 (en) | 2012-04-19 |
EP2504588A4 (en) | 2013-06-19 |
ZA201202348B (en) | 2012-12-27 |
US8910449B2 (en) | 2014-12-16 |
US20120222381A1 (en) | 2012-09-06 |
EP2504588A1 (en) | 2012-10-03 |
AU2010324519B2 (en) | 2014-06-05 |
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